def func(n,s,t):
    if s==t:
        return True
    a=b=c=0
    x=y=z=0
    for i in range(n):
        if s[i]>t[i]:
            return False
        elif s[i]<t[i]:
            if s[i]=='A':
                a+=1
            elif s[i]=='B':
                b+=1
            elif s[i]=='C':
                c+=1
            if t[i]=='A':
                x+=1
            elif t[i]=='B':
                y+=1
            elif t[i]=='C':
                z+=1
    if a<=x or b==0 or y==0 or b!=y or c>=z:
        return False
    p=b+2*c
    q=y+2*z
    if p>=q:
        return False
    elif (q-p)%2:
        return False
    return a-(q-p)//2==x and c+(q-p)//2==z

print("Yes" if func(int(input()),input(),input()) else "No")